Merge commit '1005c7e630baa54e58ac331f48bf876011deb6b3' as 'tk8.6'

1 files changed, 317 insertions, 0 deletions

diff --git a/tk8.6/macosx/tkMacOSXNotify.c b/tk8.6/macosx/tkMacOSXNotify.c
new file mode 100644
index 0000000..f14e1b8
--- /dev/null
+++ b/tk8.6/macosx/tkMacOSXNotify.c
@@ -0,0 +1,317 @@
+/*
+ * tkMacOSXNotify.c --
+ *
+ *	This file contains the implementation of a tcl event source
+ *	for the AppKit event loop.
+ *
+ * Copyright (c) 1995-1997 Sun Microsystems, Inc.
+ * Copyright 2001-2009, Apple Inc.
+ * Copyright (c) 2005-2009 Daniel A. Steffen <das@users.sourceforge.net>
+ * Copyright 2015 Marc Culler.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tkMacOSXPrivate.h"
+#include "tkMacOSXEvent.h"
+#include <tclInt.h>
+#include <pthread.h>
+#import <objc/objc-auto.h>
+
+/* This is not used for anything at the moment. */
+typedef struct ThreadSpecificData {
+    int initialized;
+} ThreadSpecificData;
+static Tcl_ThreadDataKey dataKey;
+
+#define TSD_INIT() ThreadSpecificData *tsdPtr = \
+	Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData))
+
+static void TkMacOSXNotifyExitHandler(ClientData clientData);
+static void TkMacOSXEventsSetupProc(ClientData clientData, int flags);
+static void TkMacOSXEventsCheckProc(ClientData clientData, int flags);
+
+#pragma mark TKApplication(TKNotify)
+
+@interface NSApplication(TKNotify)
+/* We need to declare this hidden method. */
+- (void) _modalSession: (NSModalSession) session sendEvent: (NSEvent *) event;
+@end
+
+@implementation NSWindow(TKNotify)
+- (id) tkDisplayIfNeeded
+{
+    if (![self isAutodisplay]) {
+	[self displayIfNeeded];
+    }
+    return nil;
+}
+@end
+
+@implementation TKApplication(TKNotify)
+/* Display all windows each time an event is removed from the queue.*/
+- (NSEvent *) nextEventMatchingMask: (NSUInteger) mask
+	untilDate: (NSDate *) expiration inMode: (NSString *) mode
+	dequeue: (BOOL) deqFlag
+{
+    NSEvent *event = [super nextEventMatchingMask:mask
+					untilDate:expiration
+					   inMode:mode
+					  dequeue:deqFlag];
+    /* Retain this event for later use. Must be released.*/
+    [event retain];
+    [NSApp makeWindowsPerform:@selector(tkDisplayIfNeeded) inOrder:NO];
+    return event;
+}
+
+/*
+ * Call super then check the pasteboard.
+ */
+- (void) sendEvent: (NSEvent *) theEvent
+{
+    [super sendEvent:theEvent];
+    [NSApp tkCheckPasteboard];
+}
+@end
+
+#pragma mark -
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * GetRunLoopMode --
+ *
+ * Results:
+ *	RunLoop mode that should be passed to -nextEventMatchingMask:
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static NSString *
+GetRunLoopMode(NSModalSession modalSession)
+{
+    NSString *runLoopMode = nil;
+
+    if (modalSession) {
+	runLoopMode = NSModalPanelRunLoopMode;
+    } else if (TkMacOSXGetCapture()) {
+	runLoopMode = NSEventTrackingRunLoopMode;
+    }
+    if (!runLoopMode) {
+	runLoopMode = [[NSRunLoop currentRunLoop] currentMode];
+    }
+    if (!runLoopMode) {
+	runLoopMode = NSDefaultRunLoopMode;
+    }
+    return runLoopMode;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tk_MacOSXSetupTkNotifier --
+ *
+ *	This procedure is called during Tk initialization to create
+ *	the event source for TkAqua events.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	A new event source is created.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+Tk_MacOSXSetupTkNotifier(void)
+{
+    TSD_INIT();
+
+    if (!tsdPtr->initialized) {
+	tsdPtr->initialized = 1;
+
+	/*
+	 * Install TkAqua event source in main event loop thread.
+	 */
+
+	if (CFRunLoopGetMain() == CFRunLoopGetCurrent()) {
+	    if (!pthread_main_np()) {
+		/*
+		 * Panic if main runloop is not on the main application thread.
+		 */
+
+		Tcl_Panic("Tk_MacOSXSetupTkNotifier: %s",
+		    "first [load] of TkAqua has to occur in the main thread!");
+	    }
+	    Tcl_CreateEventSource(TkMacOSXEventsSetupProc,
+				  TkMacOSXEventsCheckProc,
+				  GetMainEventQueue());
+	    TkCreateExitHandler(TkMacOSXNotifyExitHandler, NULL);
+	    Tcl_SetServiceMode(TCL_SERVICE_ALL);
+	    TclMacOSXNotifierAddRunLoopMode(NSEventTrackingRunLoopMode);
+	    TclMacOSXNotifierAddRunLoopMode(NSModalPanelRunLoopMode);
+	}
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkMacOSXNotifyExitHandler --
+ *
+ *	This function is called during finalization to clean up the
+ *	TkMacOSXNotify module.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+TkMacOSXNotifyExitHandler(
+    ClientData clientData)	/* Not used. */
+{
+    TSD_INIT();
+
+    Tcl_DeleteEventSource(TkMacOSXEventsSetupProc,
+			  TkMacOSXEventsCheckProc,
+			  GetMainEventQueue());
+    tsdPtr->initialized = 0;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkMacOSXEventsSetupProc --
+ *
+ *	This procedure implements the setup part of the MacOSX event
+ *	source. It is invoked by Tcl_DoOneEvent before calling
+ *      TkMacOSXEventsProc to process all queued NSEvents.  In our
+ *      case, all we need to do is to set the Tcl MaxBlockTime to
+ *      0 before starting the loop to process all queued NSEvents.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *
+ *	If NSEvents are queued, then the maximum block time will be set
+ *	to 0 to ensure that control returns immediately to Tcl.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+TkMacOSXEventsSetupProc(
+    ClientData clientData,
+    int flags)
+{
+    NSString *runloopMode = [[NSRunLoop currentRunLoop] currentMode];
+    /* runloopMode will be nil if we are in the Tcl event loop. */
+    if (flags & TCL_WINDOW_EVENTS && !runloopMode) {
+	static const Tcl_Time zeroBlockTime = { 0, 0 };
+	/* Call this with dequeue=NO -- just checking if the queue is empty. */
+	NSEvent *currentEvent = [NSApp nextEventMatchingMask:NSAnyEventMask
+				       untilDate:[NSDate distantPast]
+				       inMode:GetRunLoopMode(TkMacOSXGetModalSession())
+				       dequeue:NO];
+	if (currentEvent) {
+	    if (currentEvent.type > 0) {
+		Tcl_SetMaxBlockTime(&zeroBlockTime);
+	    }
+	    [currentEvent release];
+	}
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkMacOSXEventsCheckProc --
+ *
+ *	This procedure loops through all NSEvents waiting in the
+ *      TKApplication event queue, generating X events from them.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	NSevents are used to generate X events, which are added to the
+ *      Tcl event queue.
+ *
+ *----------------------------------------------------------------------
+ */
+static void
+TkMacOSXEventsCheckProc(
+    ClientData clientData,
+    int flags)
+{
+    NSString *runloopMode = [[NSRunLoop currentRunLoop] currentMode];
+    /* runloopMode will be nil if we are in the Tcl event loop. */
+    if (flags & TCL_WINDOW_EVENTS && !runloopMode) {
+	NSEvent *currentEvent = nil;
+	NSEvent *testEvent = nil;
+	NSModalSession modalSession;
+
+	do {
+	    [NSApp _resetAutoreleasePool];
+	    modalSession = TkMacOSXGetModalSession();
+	    testEvent = [NSApp nextEventMatchingMask:NSAnyEventMask
+					      untilDate:[NSDate distantPast]
+						 inMode:GetRunLoopMode(modalSession)
+						dequeue:NO];
+	    /* We must not steal any events during LiveResize. */
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
+	    if (testEvent && [[testEvent window] inLiveResize]) {
+		break;
+	    }
+#else
+	    if (testEvent && [[[testEvent window] contentView] inLiveResize]) {
+		break;
+	    }
+#endif
+	    currentEvent = [NSApp nextEventMatchingMask:NSAnyEventMask
+					      untilDate:[NSDate distantPast]
+						 inMode:GetRunLoopMode(modalSession)
+						dequeue:YES];
+	    if (currentEvent) {
+		/* Generate Xevents. */
+		int oldServiceMode = Tcl_SetServiceMode(TCL_SERVICE_ALL);
+		NSEvent *processedEvent = [NSApp tkProcessEvent:currentEvent];
+		Tcl_SetServiceMode(oldServiceMode);
+		if (processedEvent) { /* Should always be non-NULL. */
+#ifdef TK_MAC_DEBUG_EVENTS
+		    TKLog(@"   event: %@", currentEvent);
+#endif
+		    if (modalSession) {
+			[NSApp _modalSession:modalSession sendEvent:currentEvent];
+		    } else {
+			[NSApp sendEvent:currentEvent];
+		    }
+		}
+		[currentEvent release];
+	    } else {
+		break;
+	    }
+	} while (1);
+    }
+}
+
+
+/*
+ * Local Variables:
+ * mode: objc
+ * c-basic-offset: 4
+ * fill-column: 79
+ * coding: utf-8
+ * End:
+ */